Calvert Watkins wrote abo
Calvert Watkins wrote about the poetics of this family in How to Kill a Dragon. An isogloss which divides this family into two groups is named for the words for "one hundred" in two of its languages. The Kurgan hypothesis is one of the theories of the origins of its "proto" ancestor. Basque and Finnish are among the few European languages which do not belong to this family, which includes Celtic and Germanic branches. For 10 points, name this large language family which includes Punjabi and English.
Calvert Watkins wrote about the poetics of this family in How to Kill a Dragon.
{Indo}-{European} language family